Query: NC_014909:619407 Candidatus Blochmannia vafer str. BVAF chromosome, complete genome Lineage: Blochmannia vafer; Blochmannia; Enterobacteriaceae; Enterobacteriales; Proteobacteria; Bacteria General Information: Candidatus Blochmannia is an obligate bacterial associate of Camponotus and related ant genera. Blochmannia vafer was isolated from Camponotus vafer workers and larvae collected from a single colony in the Coronado National Forest near Portal, Arizona, USA. Blochmannia is located within bacteriocytes, where the bacterial cells float freely in the host cytoplasm, and within oocytes of queens.
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General Information: Desulfovibrio desulfuricans subsp. desulfuricans str. ATCC 27774 was isolated from the rumen of a sheep. D. desulfuricans reduces sulfate to sulfide found in soil, freshwater, saltwater and the intestinal tract of animals. This organism grows anaerobically and utilizes a wide variety of electron acceptors, including sulfate, sulfur, nitrate, and nitrite, as well as others. The nitrate reduction pathway is not expressed while sulfate is available. Alternatively, the sulfate reduction pathway is constitutively expressed when the cells are growing with nitrate reduction. A number of toxic metals are reduced, including uranium (VI), chromium (VI) and iron (III), making this organism of interest as bioremediator. Metal corrosion, a problem that is partly the result of the collective activity of this bacterium, results in billions of dollars in losses each year to the petroleum industry. This organism is responsible for the production of poisonous hydrogen sulfide gas in marine sediments and in terrestrial environments such as drilling sites for petroleum products.